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Plasma cleaning machine gas pressure regulation and use skills

Plasma cleaning machine gas pressure regulation and use skills

Compressed gas is an essential part of modern industry. The common compressed gas in industry mainly includes compressed air (CDA) and bottled compressed gas. Compressed air is called the second power source, second only to electricity, and is a multi-purpose process gas source. Bottled compressed gas for industrial use is usually contained in a controlled cylinder with a pressure of 13-15 mpa. Its advantages are space-saving, safe and easy to transport. Compressed gas in the use of the actual use of demand for decompression and voltage regulation, so the plasma cleaning machine gas pressure regulation of what, and what are the use of skills? Gas pressure control is one of the important parameters to ensure the normal operation of plasma cleaning machine, common gas pressure reducer, pneumatic pressure regulating valve and pipeline throttle valve. 1. Cylinder pressure reducer: Cylinder unloader is a device for reducing the pressure of gas in a cylinder to the pressure of gas. The process gas used in the plasma cleaning machine is mostly bottled high-pressure gas. In order to ensure the process stability and the working stability of each gas circuit element, the high-pressure gas is usually reduced to 0.2-0.4mpa through the cylinder pressure reducer. It is necessary to ensure the sealing of the gas cylinder connecting the pressure-relief device and the pressure-relief device connecting the air pipe. When installing the pressure-relief device to the gas cylinder, the raw material belt shall be used as the sealing medium and wound on the threaded mouth of the gas cylinder. The output interface of the pressure-relief device is recommended to use the 3/8 standard interface, which is convenient to replace the original tower joint with quick twist joint or double sleeve joint, so as to ensure the sealing between the process gas output pipe and the gas interface of the plasma cleaning machine. If the industrial gas is argon, an oxygen pressure reducer is recommended. The main reason is that the output pressure of the special argon pressure-relief device is usually 0.15mpa. For example, one bottle of gas is supplied to two or more plasma cleaning machines, and the output pressure cannot meet the requirements of use, which is likely to cause undervoltage alarm of the device.   2. Pneumatic pressure regulating valve: Pneumatic pressure regulating valve is an important part of pneumatic control, its role is to control the external compressed gas at the required working pressure, and ensure its pressure and flow stability. Whether it is vacuum plasma cleaning machine or atmospheric plasma cleaning machine, pneumatic pressure regulating valve will be installed when the gas input, in order to ensure the cleanliness of the gas can be installed in the use of gas filter module. The following picture shows the application of pressure regulating valve and filter assembly in atmospheric plasma cleaning machine. To facilitate the inspection of gas pressure, pressure gauge can be installed on the pressure regulating valve or choose a pressure regulating valve with pressure gauge. If you need to provide undervoltage alarm, you can also choose the pressure gauge with alarm output function or add pressure switch. 3. Pipe throttle Valve: Pipeline throttle valve is usually used in atmospheric plasma cleaning machine, through its regulating needle valve to adjust the size of the vent to achieve pressure and flow control. Most of the common pipe throttle valves are quick plug joints, and the volume is relatively small. The process gas used by the atmospheric plasma cleaning machine is purified clean compressed air, and the pressure stability requirements are much lower than the vacuum plasma cleaning machine, so part of the atmospheric plasma cleaning machine directly installed in the air pipeline throttle valve to achieve pressure and flow control. Similarly, if the need for real-time pressure monitoring, can be installed on the gas line pressure gauge, with alarm output pressure gauge and pressure switch and other devices.

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Why is plasma surface treatment developing so fast

Why is plasma surface treatment developing so fast

With the rapid development of high-tech industry, various processes have higher and higher technical requirements for products. The emergence of plasma surface treatment technology has not only improved product performance and production efficiency, but also achieved safety and environmental protection effect. Plasma surface treatment technology can be applied in the fields of materials science, polymer science, biomedical materials science, microfluidics research, microelectromechanical system research, optics, microscopy and dentistry. It is this extensive application field and huge development space that make the plasma surface treatment technology develop rapidly in foreign developed countries. According to the survey data, the total output value of the plasma surface treatment equipment in the world reached more than 300 billion yuan in 2008. However, we have to wonder why plasma surface treatment technology has developed so rapidly in just 20 years. (1) Principle and application of plasma surface treatment technology: Plasma, or the fourth state of matter, is an ionized gas composed of atoms that have been stripped of some of their electrons and the positive and negative electrons created by ionized atoms. This ionized gas is made up of atoms, molecules, atomic groups, ions, and electrons. Its action on the surface of the object can realize the object super-clean cleaning, object surface activation, etching, finishing and plasma surface coating. According to the difference of particles in the plasma, the specific principle of object processing is different, and the different input gas and control power realize the diversification of object processing. Because the strength of low-temperature plasma on the surface of the object is less than that of high-temperature plasma, it can achieve the protection effect on the surface of the treated object. In applications, we mostly use low-temperature plasma. And different kinds of particles behave differently in the way they treat an object. Radicals. It is mainly to realize the "activation" effect of energy transfer in the process of chemical reaction on the surface of objects. The effect of electrons on the surface of an object mainly includes two aspects: On the one hand is the impact on the surface of the object, on the other hand is caused by a large number of electron impact chemical reaction; The surface of the object is treated by ion sputtering. Ultraviolet light breaks down molecular bonds on the surface of an object and enhances penetration. (2) The advantages of plasma surface treatment technology are dry treatment technology, which has the following advantages instead of traditional wet treatment technology: 1. Environmental protection technology: The plasma action process is a gas-solid coherent reaction, which does not consume water resources and does not need to add chemical agents 2. High efficiency: The whole process can be completed in a relatively short time 3. Low cost: the device is simple, easy to operate and maintain, a small amount of gas instead of expensive cleaning liquid, and there is no waste liquid treatment cost 4. More refined processing: able to penetrate into the interior of fine holes and depressions and complete cleaning tasks 5. Wide applicability: Plasma surface treatment technology is capable of treating most solid substances, so it has a wide range of applications. (3) the prospect of plasma surface treatment technology: With the development of electronic information industry, especially in communications products, computers and parts, semiconductor, LCD and optoelectronic products of ultra-precision industrial cleaning equipment and high value-added equipment requirements gradually increase, the proportion of the plasma surface treatment equipment has become the basis of a lot of electronic information industry. And along with the industry technical requirement unceasing enhancement, the plasma cleaning technology will have the broader development space in the domestic. With the rapid development of the automobile industry, many foreign manufacturers have targeted to the Chinese market, and many spare parts manufacturers have also moved to China, which have put forward new technical requirements for cleaning. It can be said that plasma cleaning technology is more suitable for the development of the automobile industry. The treatment process before the use of medical devices is very fine, cleaning with freon is not only a waste of resources but also very expensive. The use of plasma surface treatment technology avoids the disadvantages of using chemical substances, and it is more suitable for the technical requirements of modern medical technology. The cleaning technology of optical devices and some optical products is very high, and the plasma surface treatment technology can be more widely used in this field. Plasma surface treatment technology can be use

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Plasma technology replaces traditional technology to make shoes more environmentally friendly

Plasma technology replaces traditional technology to make shoes more environmentally friendly

Plasma technology has been widely used in chemical industry, material science, environmental protection and other fields. Its technical means is to activate the surface of different materials through plasma to adapt to the technical requirements of the next process, but does not change the surface and properties of the materials. Because it can replace the original pollution, harmful to human health process and operation, to achieve the purpose of eliminating pollution, purify the environment, and protect the health of employees, and is regarded as a technological revolution. Plasma technology replaces treating agent to treat shoe material surface, it has many advantages such as good treatment effect, eliminating pollution, saving electricity and energy, reducing cost, reducing labor, etc. It is a major innovation in shoemaking technology in recent years. One of the key points of sustainable development is to take the green, safe and healthy road of new industrialization. At present, the environmental problems are the organic solvent adhesives and treating agents used in the process. These two dosage forms of materials, because of the benzene, ketone volatile organic solvents, to the human body and the environment is very harmful, has become the target of the industry. At present, organic solvent adhesives are gradually replaced by water-soluble environmental adhesives, which makes the treating agent become the pollution source in the production environment. Therefore, the industry is in urgent need of alternative dosage forms or technologies to change the status quo. The application of plasma to shoe material technology can replace brush treating agent process, and it is superior to the original technology in many technical indexes, which can solve this technical problem well. CRF-plasma Sing Fung Intelligent Manufacturing is a high-tech enterprise specialized in the application of low-temperature Plasma technology. A variety of low temperature plasma surface treatment technologies and equipment suitable for different fields have been developed to realize the application of this technology in the shoe industry. In the process of development, repeated tests have been carried out on a variety of shoe materials. The test results show that the tension value of the shoe materials treated with plasma technology is about 15-20% higher than the standard value, which proves that the technology is feasible and excellent. However, the diversity of shoe materials leads to the application problem of plasma technology, that is, it is impossible to treat different materials with different process parameters in actual production. After the optimization of processing technology and parameters, a breakthrough in technology has been made. A variety of shoe materials can be treated with a single plasma process, and a single plasma process can also be used to replace multiple processes before brushing treating agent, such as washing, sand washing and irradiation in outsole production, etc., thus simplifying the process, saving labor and reducing cost. The most important part of this technology is the transformation of technology into application equipment. Plasma processing technology has made three breakthroughs in the field of shoemaking, including technology, process and equipment, which meet the requirements of shoemaking enterprises on production efficiency, material characteristics and operation mode. In terms of economic benefits, the plasma treatment technology has high efficiency, low operating cost and 30-40% reduction in unit power consumption. 100% cost saving of treating agent is equivalent to no consumption of oil, saving natural resources; In terms of environmental benefits, plasma treatment technology replaces treating agents, eliminates volatile organic matter (VOC) emissions, cleans the production environment, and maximally protects the health of employees. In terms of social benefits, plasma treatment technology can realize green manufacturing, optimize the production environment, reduce the residue of harmful substances in finished shoes, and protect the interests of consumers. Promote the transformation and upgrading of traditional industries to improve the competitiveness of footwear products.

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Plasma treatment makes polymers stick more tightly

Plasma treatment makes polymers stick more tightly

(a) polytetrafluoroethylene/polydimethylsiloxane /Cu, (b) polytetrafluoroethylene/polydimethylsiloxane /SUS430, (c) polytetrafluoroethylene/polydimethylsiloxane/glass. Polydimethylsiloxane treated with plasma technology can be used as a substitute for strong adhesives to adhere fluoropolymers to other types of materials. Polymer has the characteristics of light weight, high strength and good stability, and has become an essential material in modern life. However, most polymers do not naturally adhere to other materials. Therefore, it needs to be surface treated with adhesive or corrosive chemical treatment. This has caused great trouble in the food and medical fields, where pollution must be strictly controlled. It is urgent to realize clean bonding of industrial polymers. According to Scientific Report, a team of researchers at Osaka University in Japan has found a breakthrough. They developed a plasma treatment that not only made vulcanized rubber and polytetrafluoroethylene (PTFE) adhere to each other, but also to other materials. "PTFE is sprayed by a helium plasma at 200 ° C and sticks to unvulcanized rubber," says Yuji Ohkubo, author of the paper. This problem has been solved in our earlier research. But vulcanized rubber is more challenging. To this end, we have developed a novel plasma treatment for vulcanized silicone rubber that is tightly bound to PTFE. The silicone rubber mentioned by Nkubo Yuji mainly refers to polydimethylsiloxane (PDMS). The key to the adhesion of PTFE is thermo-assisted plasma treatment. For PDMS, the trick is to bombish the surface with a plasma jet, breaking the silicon-carbon bonds on the surface and converting them into silanols. The newly produced silanols are more surface active and can bind to PTFE. Then, under high pressure conditions, silanols form hydrogen bonds with oxygen-containing functional groups in the treated PTFE, thus forming a strong bonding effect. By bonding the two materials together, the new material combines the chemical resistance, scale resistance and slip resistance of PTFE with the elasticity of silicone rubber. PTFE can be replaced with perfluorane, which is more transparent, if the material transparency is required. More significantly, when the back of the PDMS is also treated with plasma technology, it can bond with copper or even glass. Plasma-treated PDMS act like double-sided tape, allowing the polymer to adhere "cleanly" to other material surfaces. Co-author Katsuyoshi Endo explained: "The new adhesion effect could make PTFE and PDMS more versatile in medical and food technologies. We hope that this non-binder bonding technology will broaden the range of polymer applications in high-tech fields."

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The application prospect of plasma technology

The application prospect of plasma technology

Plasma is the fourth state of matter different from solid, liquid and gas. Matter is made up of molecules, which are made up of atoms, which are made up of positively charged nuclei and negatively charged electrons. When applied at a high energy, the electrons leave the nucleus, and the matter becomes a plasma of positively charged nuclei and negatively charged electrons. Seemingly "mysterious" plasma is actually not rare, the most common plasma is high temperature ionized gas, such as arc, neon lights and fluorescent light gas, as well as the sun, lightning, aurora, and so on. Plasma has been widely used in mobile phone industry, semiconductor industry, new energy industry, polymer film, material anti-corrosion, metallurgy, coal chemical industry, industrial three waste treatment, medical industry, LCD display screen assembly, aerospace and other fields, with a potential market value of nearly 200 billion US dollars per year. The interaction between charged particles in plasma is very active, and the surface modification of various materials can be realized by using this characteristic. The application of plasma technology in surface technology is mainly used in the following aspects. 1. Plasma surface treatment: In order to improve the performance of cutting tools and moulds, the metal surface can be permeated with nitrogen, carbon, boron or carbon nitrogen by plasma. The characteristic of this method is that instead of adding a covering layer to the surface, the material structure and properties of the matrix surface are changed. In the process of processing, the workpiece temperature is relatively low, do not make the workpiece deformation, which is very important for precision parts. This method can be applied to a variety of metal substrates, including glow discharge nitriding, nitrocarburizing and boriding. 2. Plasma for material surface modification: Change wettability (also known as wettability). The surface wettability of some organic compounds has great influence on the adhesion of pigments, inks and binders, as well as on the surface flashier voltage and surface leakage current and other electrical properties. The measure of wettability is called the contact Angle. Different treatments of materials have different effects on the contact of antennae. 3. Application of plasma in the electronics industry: In the past, the production process of LSI chip core was replaced by chemical method and plasma method, which not only reduced the temperature in the process, but also changed the chemical wet method of gelatinizing, developing, etching and removing gelatinizing into plasma dry method, making the process simpler, facilitating the realization of automation and improving the yield of finished products. The resolution and fidelity of the chip core processed by the plasma method are both high, which is beneficial to the improvement of integration and reliability. Plasma-deposited films can be used to protect electronic components. Plasma-deposited conductive films can be used to protect electronic circuits and equipment from damage caused by static charge accumulation. Plasma-deposited films can also be used to manufacture capacitor elements. In addition to the above part of the application of plasma technology, plasma technology in the mobile phone industry, semiconductor industry, new energy industry, polymer film, anti-corrosion materials, metallurgy, industrial "three wastes" treatment and health care industry, LCD assembly, aerospace and other fields has wide application, the prospects of the vast, impressive!

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What other applications of plasma technology besides TV,cutting

What other applications of plasma technology besides TV,cutting

A Plasma Display Panel, or Plasma Display Panel in Chinese, is a device that infuses a mixture of gases between two ultrathin glass panels and applies a voltage that USES fluorescent light to produce images. Compared with CRT display, it has the characteristics of high resolution, large screen, ultra-thin, rich and bright color. Compared with LCD, it has the characteristics of high brightness, high contrast, large viewing Angle, bright color and rich interface. Plasma cutting is a process in which the heat of high temperature plasma arc is used to partially melt (and vaporize) the metal at the cut of the workpiece, and the molten metal is expelled by the momentum of high speed plasma to form the cut. Plasma arc welding is a fusion welding method using plasma arc high energy density beam as welding heat source. Plasma arc welding has the characteristics of concentrated energy, high productivity, fast welding speed, small stress deformation, stable electricity and suitable for welding thin plate and box materials, especially suitable for all kinds of refractory, easily oxidized and heat-sensitive metal materials (such as tungsten, molybdenum, copper, nickel, titanium, etc.) welding. In fact, these are just a few of the applications of plasma. Plasma has been widely used in IC semiconductor industry, LCD industry, semiconductor industry, photoelectric industry, photovoltaic industry, electrical manufacturing industry, automobile manufacturing industry, bio-pharmaceutical industry, new energy industry, battery industry and many other industries. Plasma has the advantages of energy saving, environmental protection, high efficiency, wide applicability, strong functionality, favored by all industries. Plasma is widely used in many industries. Here are some examples for reference: (1) Low-pressure high-density plasma was used for plasma etching; (2) Manufacturing of solar thin-film cells; (3) Manufacturing and cleaning of LCD, LED, OLED and other display equipment; (4) Chip bonding pretreatment; (5) Removal of metal oxides and high-precision metal purification; (6) Bonding of electrical connectors; (7)Plasma surface treatment and modification of materials; (8) Plasma polymerization medium film and magnetron sputtering vacuum coating; (9) Disinfection, biological and medical fields, including seed treatment, human tissue (wound) treatment; (10) Automobile sensor treatment, sewage treatment, tail gas treatment and so on.

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